“…5 However, along with these positive effects, data sharing also has the potential to vastly decrease patient privacy, and in turn affect patients' openness and relationships with their health care providers (i.e., be a "double edged sword.") 6 Previous research suggests that patients who are concerned about the privacy of their health information engage in risky health behaviors such as being less likely to seek care, refusing to discuss problems openly with their providers, delaying care, and even lying to providers (e.g., 6,7 ; also see 8 for a thorough review). Thus, realizing the potential of Health IT to positively transform health care depends on whether or not new technologies respect patients' privacy preferences.…”